Roller-bearing



F CHICAGO, 111111135111155, .tM'ltl'Ol-S TO CHICAGO BEARINGS Ul?CHICAGO, ILLENOXS, A CRPRATION 03F LLNOIS.

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A Specification of Letters Eateiit. frmgtqgl Aug., :Mtv 19%@0Application filed October 22,1917'. Serial No. 197,806.

To all 107mm/ it 'may wacom.' Y y Be it .known that fl, tiiiiAnLns' A.VVINN, a citizen of the `United States, residing at Chicago, in thecounty of @ook and State of lllinois, have invented a certain new anduseful linprovement in lolleideai'ings, of which the following is afull, clear, concise, and exact description, reference being had to theaccompanyingdrawings, forming a part of this specification.

/ lvly invention relates tov roller bearings and is concernedparticularly with the manner of supijiorting and guiding the rollersupon the bearing` surfaces or races.

According to the preferred forni of my invention the rollers aresupported in a cage and held upon one of the races by a plurality ofradial arms struck up from the edge of the cage. These radial armsengage a peripheral shoulder formed upon the end of the race. lt isimmaterial upon which race or upon which end of the particular race theshoulder is formed. The cage is preferably not supported upon the race,but upon the rollersthemselves, and is prevented from comingI off of theiace aXiallyby the peripheral shoulder,

The cage is formed of a single piece of sheet metal suitably formed andslotted to receive the bearings. 'lhe slots are of a size less than thediameter of the bearings or rollers so that'the edges of the slots mayrest upon the outer half of the rollers in each case tosupport the cageupon the rollers and to support the rollers upon the races.

Asthe cage engages the'puter half of the rollers, greater leverage forholding the rollers properly in position and for holding them againstimproper movement is provided.

Vilhile in the preferred embodiment which I shall hereinafter illustrateand describe, the cage rests upon the outer halves of the rollerbearings and holds the rollers against the inner race, it is to beunderstood that the reverse relation may be employed for holding therollers upon the outer race.

ln the accompanying drawings which form a part of the presentspecification- Figure 1 isa diametrical cross section of a bearingembodying my invention;

Fig. 2 is a frontelevat-ional vievv7 Aof the cage as viewed from theleft of Fig. l; and

Fig. 3 is a fragmentary section of a modieation.

The outer bearing 1, generally designated the cup, is provided with aninner conical ground surface 2 called the race. This outer bearing maybe constructed in accordance with my invention set out in applica-4 tionSerial No. 163,768, iiled April 23rd,

1917, or may be constructed in any otherpreferred form.

The outer surface 3 ofthe race is ground olif to be strictly concentricwith the inner surface 2 to provide a true bearing. The surface l is notground but is relieved and in the process of manufacture forms agripping 'surface in which the cup is cliuclred for grinding.4 rlheconfigurationv of the outer surface forms no part of. the presentinvention, however.

The inner bearing 5, generally termed the cone, is provided with a.cylindricalinnen surface 6 for attachment to a shaft oi' the like and isprovided on its outer surface with the conicalgronnd surface 7 termed arace.

7 4which is 'adapted to bear against the conical ends 9 of the rollers10 to prevent axial movement of the saine. The surface 8 is I. prises afrusto-conical ring of sheet metal having a radially extendingflange{laringouti'ard from its larger end for stiffening purposes. rlhe' sideWalls of the cage are slotted as indicated at 14, the slots being of alength slightly greater' than the overall length of the rollers 10i TheWidth of 'the slots is less than the diameter of the rollers so that theedges of the slot which are cut parallel with the sides of the rollersrest upon the outer halves of the respective rollers. 'llliesmaller endof the conical shell or cage 12 has an inturned radial flange 15provided mainly for stiffening purposes. .From the edges of the flange15 three arms ifi-sloping peripheral shoulder 8 is- 'formed adJacent thelarger end of the race ies ywith a peripheral shoulder 1? between whichand the ground surface or race 7 is formed an unfinished groove 18 forrelief in grinding. The radial arms 16 extend into the groove 18 butpreferably do not contact .j with the bottoni thereof as the cage issupported upon the rollers 10. `When the cage is put iii place the arms16 are sprung over the shoulder 1T, being forced on by pressure. This isaccomplished lpreferably by bendingl the'legs lti'individually as shownin dotted 'lines in Fig. 1A and then piessing a 'die against the legsand straighteningT them all simultaneously. As the sole purpose of thecage12 is to' guide the rollers 10 and to hold them upon'the cone 5 whenthc bearings are v separated, it is apparent that the arms 1G neednot`be. made `very heavy as they are subjected only to small stresses.

.The tightness of the bearing may be adjusted by bending the arms 16 tosecure the proper position of the rollers upon the bearings.

The shoulder 17 instead. of being formed by an outwardly extendingcollar, may consist of the side of. a groove. let into Vthe cone withoutdeparting from my invention.

In Fig. 3 l have illustrated the manner in which the edges of the slotsof the cage are formed when the rollers are relatively small. Then therollers are large the thickness of the cage isinimaterial but`when thethick ness of the cage is large with respect to the radius of therollers it is advantageous to 'form the edges of the rollerretainingslots..

Thearms 16 instead'of being bent from I the rear 'edge of the4 cage maybe struck out of the y'body of the cage and extend down into a groove inthe body of the cone below the flange 13.

Mounting the cage upon the outer halves of the bearings gives the cagegreater leverage for keeping the rollers in proper aline ment andprevents any possibility ofthe rollers climbing over thecage. Verylittle friction is presented as the cage-normally has no other work toperformthan support itself upon thev rollers.

i j l netgear The simplicity and ease of manufacture is striking. l l donot intend to be limited tothe precise details of construction" shown.

l claim: Y

1. ln combination, a bearing member having a tapered race, an innerperipheral shoulder adjacent, the smaller end of said said race, and afrusto conical sheet metaly ring having slots therein, said slots beingin width smaller` than the corresponding diameter of the rollers. andhaving their edges resting upon said rollers to support the cage uponthe rllers, a relief groove being formed upon said cone between theshoulder and the race and projections from the cage disposed 'in said`vrelief groove ,but outv of contact with the same. back of saidshoulder, to prevent axial displacement of the ring and bearings on thecone.'`

3. In combination, a cone having a bearing race, said race comprising aconical surface adapted to support lateral pressure and having a conicalsurface adapted to receive- -tlie end thrust of the rollers in onedirection,

tapered rollers for said race and a cagefor said rollers, said cagecomprisinga sheet metal ring' having openings therein of less diameterthan the rollers, the edges of said openings having vcontact with theouter halves of the rollers. a peripheral shoulder on the cone andaplurality of projections extending inward from said cage, saidprojections being normally out of contact with the cone but v beingdisposed back of said shoulders to limit axial movement of the,

cage with respect tothe cone.

4. In combination, a vtapered bearing. tapered rollers for the bearing,an inner pe'-l riplieral shoulder adjacent the smaller 4end of thebearing, and a cage carried on the rollers having a plurality ofintegral lingers therewith adapted to be formed to engage an inner edgeof said shoulder for holding the rollers on the bearing.

5. In combination, a series of tapered roll:

ers having conical end faces at one end only, an inner bearing memberhaving a tapered vbearing race upon which the rollers are adapted torun. a coperating outer bearing member comprising a ring having atapered vingmernbers having an annular'shoulder,

said ring'having laterally extending arms engaging-a baclr surface oisaid 4annular shoulder to prevent axial movement of the cage withrespect to the bearing member.

6. ln combination, a series of tapered rollers, each roller having alarger `end thereof formed 'with a conical face, an in-V nerbearingmember having a tapered bear.-l

ing race upon Which the rollers run, an annular shoulder at' the largerend of the tapered race, against which the conical end faces of therollers are adapted to engage to sustain the end thrust in thatdirection, a,

retaining shoulder at the other end of the race and a retaining ring forthe rollers hav-` ing a plurality of flexible arms extending inwardlyand lying baclr o1" the retaining shoulder' to retain the rollers onsaid bearing member. l

7. ln combination, a tapered bearing, tapered rollers` for the' bearing,an inner peripheralA shoulder 'at the smaller end of the bearing, and acage carried on the rollers, said cage having several inwardly;extending projections adapted to project Within the outer periphery 0isaid shoulder to hold the cage and rollers on the bearing and adapted tobe bent relatively to the body ot the cageto .engage said shoulder forproperly positioning 'the rollers on the bearing.

8.v ln combination, a tapered bearing tapered rollers for the bearing,said bearing havingan annular groove at onek end, a cage for therollers, and several lingers integral with the cage extending Withinsaidgroove and engaging either Wall-thereof for holding the cage androllers against removal -rom the small end of the bearing.

' 9, In combination, a tapered bearing., taperedrollers for the bearing,asheet metal cage for'the rollers, the bearing being provided with acircumferential groove, said Y holding having a plurality oi inwardlydirected integral lingers disposed Within said "groove for retaining therollers and cage on therbearing. l0. ln a roller, bearing, an innertapered race ring, tapered rollers, on the ring, a

sheet metal .cage for the"rollers, said race circumferential shoulder onthe race ring atV the larger ends of the rollers adapted to engage thesaid larger ends to withstand end thrust, and a cage carried on therollers having several fingers for extending Within a groove inengagement with the race ring for holding the rollers and the cageagainst removal Jfrom the race ring.

l2. ln a combined thrust and radial bearing,' an inner tapered racering, tapered rollers on the ring, the larger ends of the rollersarranged at the larger end of the ring, a circumferential shoulder onthe ring inclined outwardly from the larger end of all the ring,the'larger ends oi the rollers conormedto saind shoulder and adapted toengage same toresist thrust in one direction,

and a sheet metal cage having slots 'for receiving the rollers andhaving inwardly di-v rectedradial lingers for engaging said race ring toretain the cage and rollers against removal from the ring toward thesmall end thereof. y l v 13. ln combination, a tapered cone bearing,tapered rollers for the bearing, the bearing having an outer peripheralgroove near the smaller end thereof, anda sheet metal cage carried bythe rollers, said cage having integral radial tongues adapted to be,bent to extend inwardly Within said groove to engage either-Wall thereoffor the cage andthe rollers upon the bearing. i

ln Witness whereof l hereunto subscribe my name this 16th dayof October,A. D. 1917.

- cuantas` a; vvrnii;

